nipy/dipy — pull request #20 by MrBago (2012-06-23 19:28:11+00:00)
Title: RF - create OptionalImportError for traits imports

Created OptioanImportError to handle optional import of traits. Users who do not have traits will get have noset.SkipTest raised when they run tests and import modules requiring traits so that nose does not try and test those modules.